Xml Update

Finishes Issue: #374 

Test(s): 
http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/1159/
http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/1164/
http://catrobatgw.ist.tugraz.at:8080/job/Catroid-custom-branch-test/1168/